<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>GPU Feature Testing: Canvas2D</title>
<script>
var frameCount = 0;
var context = null;

function init() {
  var canvas = document.getElementById("da-canvas");
  if (!canvas)
    return;
  try {
    context = canvas.getContext("2d");
  } catch(e) {}
}

function runTest() {
  init();
  if (context)
    window.requestAnimationFrame(draw);
  else
    endTest();
}

function draw() {
  frameCount++;
  context.fillRect(0, 0, 100, frameCount);
  if (frameCount == 6) {
    endTest();
  } else {
    window.requestAnimationFrame(draw);
  }
}

function endTest() {
  domAutomationController.send("FINISHED");
}
</script>
</head>
<body onload="runTest()">
Canvas2D should trigger GPU process launch if accelerated-2d-canvas is allowed.
300x300 is enough to trigger accelerated canvas 2D.
<canvas id="da-canvas" width="300" height="300"></canvas>
</body>
</html>
